Adjustable window-screen.



.(N M (Application filed July 18, 1901.)

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' UNTTED STATES PATENT OFFICE.

nAvfiDv v FLLEMIne, or

ADJ USTABLEWIN n'ows-CREE Ng. l

' Y srnoncncrroivforming'part of'Lt'ersPafent No. 702,094,- dated June 1o, 1902.

l Application liled uly 18,1901.. No. 52h77@ (No model.) l

To all when@ it '1n/ty concern:

Be it known -VthatL DAVID1E-1FLEMING, a citizen of the United States, residing 'atH'illsdale, in the county offHillsdale and Stateof Michigan, havejinvented a new andusefnl Adinstable Window-Screen, of which the follow-v ing isa specification. iv

This invention relates to window-screens,- and has for its object toprovide'an'im'proved adjustable screen wherein the sections thereof arel slidably connected in a simple and durable manner to facilitate the expanding and collapsing thereof for applying and removing the screen withrespect to a window.

It is furthermore designed to provide an improved frame structure, so as to stiffen and strengthen the same and to reduce the parts thereof to a minimum, so as to simplify the manufacture and reduce the oost of the frame.

Heretofore there has been an open-ended space between the overlapped portions of adj ustable screen-sections whereby insects may readily pass from the outer side to the inner side of thescreen; and invie'w of this disadvantage it is also the object of my invention to eectually close the space between lthe overlapped screen=sections and to maintain l the space closed at any andall adjustments of the screen, thereby to eeotually'exclude. insects, and without complicating thfestrucih ture and adj ustment'of the screen.; l

With these and otherobj'ectslin viewlthe present invention `consists in the combination and arrangement of parts, as will be hereinafter more fully described, shown inthe ac-` companying drawings,and particularly pointeI ed outin the appended claims, it being understood that changes in the form, proportion, size, and minor details mayfbe made Within the scope of the claims without departing from the spirit or sacrificing' any of the advantages ofthe invention. L f

In the drawings, Figurefl is a perspective view of a screen constructed in' accordance With the present invention. Fig. 2 is a longitudinal sectional View thereof. Fig. 3 is a transverse sectional view. Fig. 4 is an enlarged detail sectional view taken through the overlapped portions of the screen-sections. Fig. 5 is a detail perspective view of one corner of the screen. Fig. Gis a detail sectional view to show a corner connection of "one of the frame-sections. y Fig. 7 is a detail sectionalview showing Vthe connection betweenone end of one of the metallic screen- :strips and theV adjacent frameportion.

Like characters of-reference designate corresponding parts in all theiigures of the drawn A inols.-- y n.teferring tothedrawings, it will be seen @that the present screen is formed in opposite duplicate sections, each of which has a wooden frame comprising annouter end piece l and the oppositey duplicate longitudinal sidepieces 2,

the inner side of the frame being open, thereby providing a three-sidedframe. Upon reference to Fig. 5 ofthe drawings it will be observed that each side piece is provided with va reduced tapered tenon' 3, which is iitted snugly into a correspondingly-shaped bifurcation ormortise in the yadjacent end of the' end piece, thereby to forma 'strongand durable connect-ion `between Athese parts of the frame, it being understood that a suitable glue or adhesive elementis employedto effectually,con'nectthetenon tofthe walls ofthe -1nortise or bifurcation. Oneof the screen-sec# tions has the inner side of each longitudinal frame piece provided Witlira longitudinal dovetailed groove or seat 4, whichv extends for Atlfeentire'length of the franjre' landis-located l fjadjacent to the outer edge thereof, the opposite 'inner edge being reducedupon its inner side to form an outer longitudinalifl'ange 5, that is iln's'h with-the outer side ofthe frame.- The lother,section-has its longitudinal frame-pieces l ,provided with dovetailedtongu'es `6,which are slidably mounted in the respective grooves of n the first-mentioned member, .so as to slidably connect the sections and permit of longi-tudi- -nal adjustments. thereof in .opposite directions,gtheinner movements of the'sections being limited by the cooperationV ofthe inner endsvof said sections with the 'screenfretaining strips 7, thatareappliedto'the inner'si'des of the respective end pieces 'of 'the frames. Each section is provided with;v a V'foraminous wire screen 8, that has its opposite longitudinal edges secured to the inner sides of the respective flanges 5. by means of tacks or other suitable fastenings 9 andthe outer edge of the screen being connected to the adjacent end piece l in a similar manner. The hereinbefore-mentioned screen-strip 7 is then applied Ioo to the inner face of the end piece, so as to overlap and cover the outer marginal edge of the wire screen, and is secured to the said end piece by means of the opposite terminal fastenings l0, preferably in the form of screws. As best indicated in Fig. 2 of the drawings, it will be seen that each wire-screen portion terminates short of the inner end of its frame and is provided with a substantially U -shaped metallic edge strip 11, that embraces the said edge portion and is then folded over therewith fiat against the inner side of the wire screen, thereby providing an inwardly-directed and laterally-offset edge strip which lies in frictional engagement with the inner side of the opposite screen portion. By this arrangement the space between the overlapped portions of the screen-sections has its opposite ends normally closed by the respective edge strips, thereby to effectually prevent passage of insects inwardly between the screen-sections. It will also be observed that these edge strips travel in opposite directions in the same plane,

so that when the sections are at their outer limits these strips lie in mutuai engagement, thereby forming stops to limit the extension of the screen. Moreover, these edge strips serve to protect the inner edge of the wirescreen portions and also stiffen and strengthen the same. be seen that each end of the strip is flattened and secured to the Iiange portion by means of a suitable fastening 12, whereby the strip constitutes an inner end piece for the adjacent frame-section.

Upon reference to Fig. 6 it will be seen that the fastening lO pierces the adjacent tongue 3, so as to insure a strong and durable connection between the under and side pieces in addition to that obtained by the glue or other adhesive material.

From the foregoing description it is apparent that the present invention provides an exceedingly simple and inexpensive screen, as each screen-section has but three separate pieces in the frame thereof, the tongue portions being formed integrally with the frame and the screen-strips being applied merely tocover and protect the marginal edges of the wire-screen portions. Furthermore, the screen-sections are arranged to effectually exclude the inward passage of insects through l the joint between the overlapped portions thereof, which is an important advantage of the present invention, and this feature is secured without increasing the cost of the screen and also without interfering with the convenient adjustment of the screen-sections.

What I claim isl. A window-screen, comprising substantially duplicate overlapping frame-sections,

As best indicated in Fig. 7, it will wire screens secured to the adjacent faces of the respective frame-sections, and screenstrips secured to the inner faces of the outer ends of the respective framesections and covering the outer marginal edges of the respective screens, the inner faces of the opposite longitudinal sides of one frame-section being provided with longitudinal dovetailed grooves which open through the inner end of the section, and the inner faces of the opposite longitudinal sides of the other frame-section having integral longitudinal dovetailed tongues slidably mounted in the respective grooves of the firstmentioned frame-section.

2. A window-screen comprising opposite substantially rectangular duplicate overlapping frame-sections, wire screens secured to the adjacent faces of the frame-sections, and metallic U -shaped strips embracing the outer free edges of the respective wire screens to form the inner ends of the frame-sections, and folded over therewith against the inner faces thereof and lying in frictional engagement with the screens of the respective other sections, Whereby the folded-over portions of the strips travel in the same plane and form stops for mutual engagement to limit outward movements of the frame-sections, and also form closures for the space between the overlapped portions of the sections, the opposite ends of the strips being fastened to the opposite sides of the respective frame-sections.

3. A window-screen, comprising opposite substantially duplicate screen-sections, each of which has a three-sided frame, a wirescreen portion secured to the inner side of the frame, and a screen-strip secured to the inner side of the end of the frame and covering the outer marginal edge of the screen portion, the inner faces of the opposite longitudinal sides of one frame being provided with longitudinal dovetailed grooves which open through the inner end of the frame, the inner faces ot' the opposite longitudinal sides of the'other frame havingintegral longitudinal dovetailed tongues slidably mounted in the respective grooves, and substantially U -shaped metallic edge strips embracing the inner end edges of the respective wire-screen portions and folded over therewith flat against the inner sides of said screen to form laterally-oifset stop-strips lying upon the inner sides of the respective screen portions and in frictional engagement with the respective opposite screen-sections.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

. DAVID E. FLEMING.

Witnesses:

RUBEN E. FLEMING, MER'roN FITZPATRICK.

IIO 

